報告書番号

V14014

タイトル（和文）

業務用厨房の排気フードにおけるオイルミスト捕集率の評価方法の開発と適用

タイトル（英文）

Development and application of evaluation method for collection efficiency of oil-mist at ventilation hood in commercial kitchen

概要 （図表や脚注は「報告書全文」に掲載しております）

本研究は、業務長厨房の排気フードにおけるオイルミストの捕集率評価方法を確立するとともに、確立した手法の適用可能性を評価することを目的とした。捕集率評価のための試料は、①フード内壁、②ダクト入口、③ダクト内壁、④ダクト排気、⑤落下物、の5点として、それぞれについてサンプリング、前処理、分析方法を考案した。考案した手法について試料損失と外部からの汚染の可能性を評価した結果、回収率は95.5~103%となり、損失や外部からの汚染を受けることなく定量できることが明らかになった。また、確立した手法を模擬フードに適用した結果、発生したトレーサ粒子のほぼ全量がフード内に到達する条件において、発生量に対して95%を回収することに成功した。この結果から、確立した手法は、業務用厨房の排気フードにおけるオイルミスト捕集率の評価に適用できることが明らかになった。

概要 （英文）

The purpose of this study is to develop the evaluation method for collection efficiency of oil-mist at commercial kitchen hood. Also the possibility to apply the developed method for the evaluation of collection efficiency of oil-mist at the test hood was evaluated. (1)Inner wall of hood, (2)duct inlet, (3)inner wall of duct, (4)duct exhaust and (5)deposit to the ground were selected as the samples for evaluation of collection efficiency of oil-mist at kitchen hood. Then the sampling, pretreatment and analytical method was established as each sample. As a result, tracer particles of oil-mist were analyzed quantitatively for each sample using the established method without any external contamination and sample loss. The established method was applied to the evaluation of collection efficiency of tracer particles of oil-mist at the test hood, resulting that the distribution of tracers to the inner wall of hood, inner wall of duct and the deposit to the ground was at most 0.2% as against the total generation. Accordingly these three sampling ports were considered to be possible to omit as the sampling target. In addition, it was clarified that 95% of collection efficiency to the generation was achieved using metal filter and activated carbon filter as the adsorbent at duct inlet and activated carbon adsorbent as sampling at duct exhaust. As described above, the established method was concluded to be suitable for the evaluation of the collection efficiency of oil-mist at commercial kitchen hood.

報告者

キーワード